CELL REPRODUCTION. THE CELL CYCLE AND MITOSIS. Lesson Objectives—Cell Cycle. Describe the properties of cell division in prokaryotes.
THE CELL CYCLE
1: DNA Overload
2: Exchange of materials
1: DNA Replication—DNA is copied, resulting in 2
2: Chromosome Segregation—2 chromosomes separate,
move towards ends (poles) of cell
3: Cytokinesis—cytoplasm divides, forming 2 cells
genetically identical to parent cell
-- Homologous Pair
1: Mitosis (4 steps—Prophase, Metaphase, Anaphase, Telophase)
2: Cytokinesis—Cytoplasm divide, forming 2 cells
Each new daughter cell is genetically identical to parent cell
2. centrioles migrate to the poles (only in animals)
3. nuclear membrane disappears
4. spindle forms
2. nuclear membranes reform
3. spindle disappears
--division of the cytoplasm to form 2 new daughter cells
--organelles are divided
-Daughter cells are genetically identical
Cells return to interphase
5. Name the phase
6. Name the phase
structure, known as a chromosome.
consists of two identical chromatids, known as sister chromatids, attached at a region
called the centromere.
from the fusion of two haploid gametes.
the second growth (G2) phase, mitosis, and cytokinesis.
recognized: prophase, metaphase, anaphase, and telophase.